The latest version of Portable OpenOffice.org, an edition of the open source office suite that fits on a USB stick, includes a number of updates such as full support for Windows 2000 and launchers for each OpenOffice.org application. Portable OpenOffice.org 2.0.1 includes all the applications included in OpenOffice.org 2.0.1 and takes up only 144MB of storage space, compared to the 300MB of disk space required by the full version of the office suite. But 144MB is still too big, considering that many USB sticks only store 256MB, according to Gary Barnett, a research director at analyst firm Ovum.